Only 50 of 227 items will remain in the highest GST tax slab of 28 per cent, with the 177 others moved to lower slabs, Bihar Finance Minister Sushil Modi said today in Assam's Guwahati, where Union Finance Minister Arun Jaitley is meeting his counterparts from states in the powerful GST council. The decision comes amid complaints by traders and small businesses which say the new nationwide tax, which came into effect from July, has increased their tax and administrative burden.